/**
 *  Copyright (c) 2010 The edtf project.  All rights reserved.
 *
 *  This file is part of edtf (Event Driven Testing Framework).
 *
 *  edtf is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  edtf is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with edtf.  If not, see <http://www.gnu.org/licenses/>.
 *
 *  This software consists of voluntary contributions made by many
 *  individuals.  For exact contribution history, see the revision
 *  history and logs, available at http://code.google.com/p/edtf.
 */
package org.xepf.event;

import java.util.Date;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.xepf.xml.adapter.XPath;
import org.xepf.utils.ObjectCreator;
import org.xepf.xml.adapter.XMLNode;

/**
 *
 * 
 */
public class EventImp implements Event {
    String source = "event source undefined";
    String eventXml = "event xml content undefined";
    boolean isMasked = false;
    XPath xPath;

    public EventImp() throws Exception {
        xPath = (XPath) ObjectCreator.get("XPath");
    }

    @Override
    public void initialize(String eventXml) throws Exception {
        this.eventXml = eventXml;
        xPath.initialize(eventXml);
    }
    
    @Override
    public void setSource(String sEventSource) {
        this.source = sEventSource;
    }

    @Override
    public String getSource() {
        return source;
    }

    @Override
    public void setMask(boolean bEventMask) {
        this.isMasked = bEventMask;
    }

    @Override
    public boolean isMasked() {
        return isMasked;
    }

    @Override
    public void setDestination(String eventDestination) {
        throw new UnsupportedOperationException("Not supported yet.");
    }

    @Override
    public String getDestination() {
        throw new UnsupportedOperationException("Not supported yet.");
    }

    @Override
    public int getId() {
        throw new UnsupportedOperationException("Not supported yet.");
    }

    @Override
    public Date getDate() {
        throw new UnsupportedOperationException("Not supported yet.");
    }

    @Override
    public String getContent() {
        return eventXml;
    }
    
    @Override
    public XMLNode getNode() {
        return xPath.getXmlDocumentNode();
    }

    @Override
    public boolean query(String xPathExpression) throws Exception {
        try
        {
            List<XMLNode> nodes = xPath.query(xPathExpression);
            if (nodes.isEmpty()) {
                return false;
            }
            
        } catch ( Exception ex ) {
            Logger.getLogger(EventImp.class.getName()).log(Level.WARNING, 
                    "Event: while querying using ''{0}'', the following exception was encountered:\n ''{1}''\n The XML event is:\n''{2}''\n", 
                    new Object[]{xPathExpression, ex, eventXml});
            throw ex;
        }
        return true;
    }
}
